
Manufacturer of buckets and quick-coupler systems for excavators made from wear-resistant Hardox steel

CSERi GmbH
Grammetal (OT Nohra) · GermanyNew on Amplifa
About CSERi GmbH
CSERi GmbH, based in the UNO Industrial Park Nohra (Grammetal) near Erfurt, produces buckets, quick-coupler systems and attachments for construction and industrial machinery. Founded in 1993 as a GbR in Großschwabhausen near Jena, the family-owned company manufactures digging buckets, ditch cleaning buckets (rigid and hydraulically tiltable), rock buckets, sieve buckets, tilt buckets, ripper teeth, land-clearing rakes, root rakes as well as mechanical and hydraulic quick couplers of the CSW and LifeLine series, complemented by Powertilt tilt-rotator solutions for excavators from 1.2 to approx. 12 t operating weight. Production is carried out as welded fabrication and assembly, mainly from highly wear-resistant steels Hardox 400/450 and Raex HB 400/500 from SSAB; quick couplers are produced in a quenched and tempered cast execution. An in-house research and development department with four CAD workstations develops patented safety solutions such as the claw lock. The company is certified according to DIN EN ISO 9001 and DIN EN ISO 3834-2 and uses FARO 3D metrology.
- Site
- Grammetal (OT Nohra)
- Processes
- Digging bucket manufacturing, Hydraulically tiltable ditch cleaning bucket manufacturing, Quick-coupler system manufacturing (mechanical/hydraulic, quenched and tempered cast version), Welding (welded fabrication, certified according to DIN EN ISO 3834-2), FARO 3D metrology (contactless 3D scanning and tactile measurement), CAD design (4 CAD workstations), Ripper tooth manufacturing, Land-clearing rake manufacturing
- Materials
- Hardox 450, Hardox 400, Raex HB 400, HB 400, HB 500, Cast steel (high quality, quenched and tempered cast version), Quenched and Tempered Cast Steel
- Certificates
- DIN EN ISO 9001, DIN EN ISO 3834-2, ISO 9001
- Founded
- 1993
- Employees
- 30
- Industries
- Construction and industrial machinery, Attachments for excavators, Landscaping
- 01
Design (CAD)
- 02
Welded Fabrication
- 03
Assembly
- 04
3D Measurement (FARO)
Materials and Processes
Hardox 400
Highly wear-resistant steel for bucket bottoms, side walls and side cutters.
Hardox 450
Material for standard buckets and heavy bucket classes.
Raex HB 400
Wear-resistant SSAB steel for standard buckets and accessories such as ripper teeth.
HB 500
For cutting edges, rear cutters and serrated edges of buckets and root rakes.
Quenched and Tempered Cast Steel
Material for mechanical and hydraulic quick-coupler systems.
Locations

Grammetal (OT Nohra)
DEHeadquarters, Production, Administration
- Part weight / size
- 16–433 kg
- Materials
- Hardox 400/450, Raex/HB 400/500, Cast steel
- FARO Arm (3D measuring arm, since 2015)
Components




Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Digging bucket manufacturingAssembly | – | – | 16 kg – 323 kg | – | Hardox 450, Hardox 400, HB 400, HB 500, Raex HB 400 |
| Hydraulically tiltable ditch cleaning bucket manufacturingAssembly | – | – | 94 kg – 433 kg | – | Hardox 450, Hardox 400, HB 400, HB 500 |
| Quick-coupler system manufacturing (mechanical/hydraulic, quenched and tempered cast version)Assembly | – | – | 18 kg – 92 kg | – | Cast steel, Hardox 450, Raex HB 400 |
| Welding (welded fabrication, certified according to DIN EN ISO 3834-2)Joining | – | – | – | – | Hardox 450, Hardox 400, HB 400, HB 500, Raex HB 400 |
| FARO 3D metrology (contactless 3D scanning and tactile measurement)Testing | – | – | – | – | – |
| CAD design (4 CAD workstations)Engineering | – | – | – | – | – |
| Ripper tooth manufacturingAssembly | – | – | – | – | HB 400 |
| Land-clearing rake manufacturingAssembly | – | – | – | – | HB 400 |
| Root rake manufacturingAssembly | – | – | – | – | HB 500 |
| Tilt bucket manufacturingAssembly | – | – | – | – | HB 500, Hardox 400, Hardox 450 |
| Rock bucket manufacturingAssembly | – | – | – | – | Hardox 450, HB 500 |
| Sieve bucket manufacturingAssembly | – | – | – | – | Hardox 450, HB 400, HB 500 |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| FARO Arm (3D scanner/measuring arm) | FARO Faro Arm | – | – | 2015 | Nohra |
Additional services
Quality
CSERi GmbH is certified according to DIN EN ISO 9001 and DIN EN ISO 3834-2. For quality assurance, a FARO measuring arm with contactless 3D scanning and tactile measurement has been in use since 2015.
| Evidence | Grammetal (OT Nohra) |
|---|---|
| ISO 9001 | |
| DIN EN ISO 3834-2 |
History
- 1993
Foundation of a GbR in Großschwabhausen near Jena
- 1997
Relocation to Magdala near Weimar, renamed Cseri GmbH
- 2003
Construction of a new production facility in the UNO Industrial Park Nohra
- 2009
Development of the first hydraulic quick couplers with two safety devices
- 2013
Establishment of an in-house research and development department
- 2014
First participation in the GALABAU trade fair in Nuremberg; Powertilt becomes partner for tilt-rotators; design expanded to 4 CAD workstations
- 2015
Certification according to DIN EN ISO 9001 and DIN EN ISO 3834-2; switch to Hardox/Raex HB400 (SSAB); investment in FARO metrology
- 2016
First patent (claw lock) granted; leasing of a warehouse in Nohra
- 2017
New building planning with capacity expansion
- 2018
Start of new construction in the UNO Industrial Park Nohra
- 2020
Completion of the new building; production area expanded to 5700 m²
- 2022
Introduction of the LifeLine HC quick coupler based on 4 patents
- 2024
Expansion of the LifeLine family with the click system, LifeLine HA and LifeLine HE